Class CommandLineInterface

java.lang.Object

com.optimaize.langdetect.cybozu.CommandLineInterface

public class CommandLineInterface
extends Object

LangDetect Command Line Interface.

This is a command line interface of Language Detection Library "LangDetect".

Renamed: this class was previously known as "Command".

TODO after my recent changes switching to the new Detector this code is untested. -Fabian

Field Summary

Fields

Modifier and Type	Field	Description
private final List<String>	arglist
private static final double	DEFAULT_ALPHA	smoothing default parameter (ELE)
private final Map<String,String>	opt_with_value	for Command line easy parser
private final Set<String>	opt_without_value
private final Map<String,String>	values

Constructor Summary

Constructors

Constructor	Description
CommandLineInterface()

Method Summary

Modifier and Type	Method	Description
private void	addOpt(String opt, String key, String value)
void	batchTest()	Batch Test of Language Detection (--batchtest option)
void	detectLang()	Language detection test for each file (--detectlang option)
void	generateProfile()	Generate Language Profile from a text file.
private double	getParamDouble(String key, double defaultValue)	Returns the double, or the default is absent.
private @Nullable Long	getParamLongOrNull(String key)
private boolean	hasParam(String opt)
static void	main(String[] args)	Command Line Interface
private LanguageDetector	makeDetector()	Using all language profiles from the given directory.
private void	parse(String[] args)	Command line easy parser
private @NotNull String	requireParamString(@NotNull String key)
private File	searchFile(File directory, String pattern)	File search (easy glob)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DEFAULT_ALPHA

private static final double DEFAULT_ALPHA

smoothing default parameter (ELE)

See Also:

• Constant Field Values

opt_with_value

private final Map<String,String> opt_with_value

for Command line easy parser

values

private final Map<String,String> values

opt_without_value

private final Set<String> opt_without_value

arglist

private final List<String> arglist

Constructor Details

CommandLineInterface

public CommandLineInterface()

Method Details

main

public static void main(String[] args)
                 throws IOException

Command Line Interface

Parameters:

args - command line arguments

Throws:

IOException

parse

private void parse(String[] args)

Command line easy parser

Parameters:

args - command line arguments

addOpt

private void addOpt(String opt,
 String key,
 String value)

requireParamString

@NotNull
private @NotNull String requireParamString(@NotNull
 @NotNull String key)

getParamDouble

private double getParamDouble(String key,
 double defaultValue)

Returns the double, or the default is absent. Throws if the double is specified but invalid.

getParamLongOrNull

@Nullable
private @Nullable Long getParamLongOrNull(String key)

hasParam

private boolean hasParam(String opt)

searchFile

private File searchFile(File directory,
 String pattern)

File search (easy glob)

Parameters:

directory - directory path

pattern - searching file pattern with regular representation

Returns:

matched file

generateProfile

public void generateProfile()

Generate Language Profile from a text file.

usage: --genprofile [text file] [language name]

detectLang

public void detectLang()
                throws IOException

Language detection test for each file (--detectlang option)

usage: --detectlang -d [profile directory] -a [alpha] -s [seed] [test file(s)]

Throws:

IOException

batchTest

public void batchTest()
               throws IOException

Batch Test of Language Detection (--batchtest option)

usage: --batchtest -d [profile directory] -a [alpha] -s [seed] [test data(s)]

The format of test data(s):

  [correct language name]\t[text body for test]\n

Throws:

IOException

makeDetector

private LanguageDetector makeDetector()
                               throws IOException

Using all language profiles from the given directory.

Throws:

IOException